Please check if all your plugins are up-to-date. To do this, go to the Mozilla Plugin Check site.

Once you're there, the site will check if all your plugins have the latest versions. If you see plugins in the list that have a yellow Update button or a red Update now button, please update these immediately.

To do so, please click each red or yellow button. Then you should see a site that allows you to download the latest version. Double-click the downloaded file to start the installation and follow the steps mentioned in the installation procedure.

Hi Tobbi,

Your advice is unfortunately incorrect. The problem is that the Firefox developers allow a broken flash player to update from its own site - wow! The "check if addons are updated" from Mozilla addon admin area downloads a broken Flash player. Who side is Mozzila supporting? You need to use an earlier player version 11.3.300.257 and not 11.3.300.262. This mistake has cost Mozilla. Firefox users are migrating to Chrome as Chrome has none of these issues and Chrome imports Firefox bookmarks easily.

At the end of the day, it means nothing if one browser is open source and the other is not, we want access. Firefox maintains to have the best font rendering of all browsers.

If Chrome can provide the level of font rendering of Firefox, there would be no need to use Firefox. I personally like Firefox and had to move to Chrome. I assume others will do the same.

P.S. I could not find the earlier version of Flash player on the Adobe site. You would think Firefox would provide this download.

you were right CaptainX... Tobbi's fix did not work. Firefox is still not playing videos. I have wasted enough time with this problem and am quite frankly stunned that firefox has done nothing to fix it. I am also very shocked that it does not seem like more people have been affected by this, unless they are just not talking, and just leaving firefox.. Like I am now doing... Thanks for at least letting me know I am not crazy!! lol!!

Check this article out: http://talkingmanuals.com/firefox-browser-page/

This article should help: https://support.mozilla.org/en-US/kb/flash-113-doesnt-load-video-firefox

If you're still having the problem after following the instructions in that article, we'll need some more info about your Firefox setup. Go to Help > Troubleshooting Information then click Copy all to Clipboard. Open a reply to this post, and go to Edit > Paste to paste the info from your Troubleshooting Information page.

Why you don't see it in IE or Chrome:
Internet Explorer uses a different plugin architecture than other browsers. See https://en.wikipedia.org/wiki/NPAPI . Google has a deal with Adobe to bundle a version of Flash specifically for Chrome, which is also why when you go to the Adobe website to download Flash, they try to force you to install Chrome.

Holy cow.... That is exactly what happened then, because I vaguely remember clicking on an update before this started going wrong. I even went back and tried to have my computer restore to a previous date, but it didn't work. Nothing has.

Thanks for the info about moving stuff to crome. It was really pretty easy. I am just having to get used to the differences with that browser. I am not super computer savvy, so everything to do with computers seems to take me longer..

I am stunned that firefox..mozilla..or whomever is responsible for this, has not corrected it in some way, or at the least sent memos indicating what is wrong by now. I cannot even imagine that it will not be a mass problem, if it is not already...

Chris, Thanks but it really looks like a bunch more of the same kinds of steps that I have already wasted hours of time on that have not worked. If Firefox/mozilla or whoever is responsible for this really is interested in me coming back over, they are gonna have to prove it to me. lol.... I am done wasting my time on this with no results. I am gonna hang out where things are working right....

Even downgrading Flash didn't work? If so, then you're experiencing a whole different problem.

By the way, Flash is made by Adobe. It is a plugin not distributed by Mozilla (who makes Firefox). Which means you or someone else on your computer installed it. Flash is unfortunately very popular and horribly unstable and unsecure. Youtube offers a way to view videos on their website without Flash. You can try it out at http://www.youtube.com/html5 . Just click on "Join the HTML5 Trial" link.

Hi Chris,

I think you missed the point, yes Adobe makes the Flash player however the plugin is created by Mozilla using the Adobe API. Now that said, why does Mozilla allow the update, on a Mozilla site to terminate to a bad, non-working Flash player? Mozilla team needs to take the responsibility and own up to this. What in the heck happened? All of that help and support is just lots of wasted time. I think well of the Mozilla team in their efforts throughout the years, however this is a tragedy especially while Chrome is climbing up the ranks.

Let me again remind all of you, Firefox will fix this in short time. Firefox has the best in font rendering of all the browsers. But these mistakes are costing loyal Firefox users to move to Chrome.

Chris you speak of downgrading - where is the downgrade link? Mozilla again misses this, at least they can give you the download link for downgrading to a good player.

NO! Mozilla has nothing to do with creating anything related to Adobe anything.

BTW, Firefox 13.0 was released on June 5th, and Adobe released a new version of Flash on June 8th (the one that is causing Firefox users all this grief). I wonder how much testing of that new version of Flash was done by Adobe with Firefox 13.0 during the 6 week beta testing phase that all recent versions of Firefox undergo?

http://talkingmanuals.com/firefox-browser-page/ is just FUD. "Unfortunately you are unable to download 11.3.300.257." That version is still available, the user just has to look for it on the Adobe website, or find a download link that many Firefox users have posted here over the last 2 weeks or so - or - find the download link in the Adobe Flash user support forum.

I'll try to answer your questions as best I can, but I think it's important to remember that this is a support forum. The point is to help iam1ru12 get his problem solved, so he can continue to the use the browser he wants to use without problems. If you'd like to get into a debate about Firefox development, you can try posting to the Mozilla dev-apps-firefox mailing list.

I'm not sure what you mean by "allow the update, on a Mozilla site". iam1ru12's issue is mainly on the Youtube website. Mozilla cannot prevent Flash from updating itself. That is done outside the browser, because plugins are not specific to one browser installation. If you install Safari or Opera, it will use the same Flash plugin that Firefox does. I think the most Mozilla can do is blacklist that version of Flash, disabling it on Firefox installations. In most cases, the Flash problems are caused by the RealPlayer Browser Record extension, and that was blocklisted.

That info is in the article I linked to, as well as instructions on how to downgrade Flash if the problem still exists after RealPlayer Browser Record extension is disabled. I wonder if you even read the article. Hehe :)

Try to "disable the hardware acceleration" in the Flash Player.

• http://helpx.adobe.com/flash-player/kb/video-playback-issues.html

See also:

• https://support.mozilla.org/kb/keep-flash-up-to-date-and-troubleshoot-problems

Flash "Display settings" window:

• http://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html

Hi cor-el,

Thanks for the information. The other confusion is that Real Player seems to be inter-twined with the Flash player. Right click on a movie and it says, Flash, but the plugin needs Real Player.

I would like to summarize that most Firefox users will not want nor be able to figure out the problem and will, in frustration, move either temporary or permanently to another browser, mainly Chrome. What can Mozilla do to ensure this does not happen again? Folks are not going to bury their heads in docs when Chrome works straight out.

I personally am staying with Firefox.

I have 3 machines and find the one that does not work is running Windows 7 in 64 bit. The other which is installed on Windows 7 32 bit mode and the other with XP/32 all run with no issues.

No Chris... It is not just you tube... No videos were loading on anything after I upgraded. I too, tried to go back after the trouble started and could not.. I wasted enough hours on it. I am using crome now... Like I said, I for any reason Fire fox is interested in getting me back, they are certainly going to have to make it effortless, as I have wasted all the energy I have time to waste when all other browsers are playing all video fine.. Thanks for the input, and quite frankly I like the so called debate, because none of the fixes I have been given work. It is obviously something bigger than that. Captain X's "debate" as well as article, has given me the most logical reason why nothing is working. At least I know that there is a reason I feel I have exhausted all avenues at this point!! Thanks for trying though Chris, I appreciate your effort as well of course...

Lets make the distinction between the Flash exe update and the Firefox browser update, one does not impact the other they are completely separate. I have about 2.5 hours trying myself to get it to work. i think it is quite unfortunate that the Firefox team has no clue what is wrong.

Fortunately, Youtube is migrating to HTML5 so you will see many of the Youtube videos playing on the messed up Firefox Flash plugin.

As Iamoneru12 states, we want it to work like Chrome, straight out the box, we have much more to do than to try to fix what should be available and not have to trouble shoot.

Mozilla is a world-class organization, they have crafted a great product and as you can tell by Chris's responses, they are professional, have a sincere desire to be helpful and always courteous. I hope they can fix this soon. I am thankful of the many years with Firefox and recommend it before all browsers. Google has unlimited resources to develop. Mozilla is 100% powered by volunteers. I will continue to hang in there for Firefox - however they seem to have no clue to what is wrong, which is scary.

Chrome seems to work out of the box only simply because Google started bundling Flash with Chrome for oh a couple years now. One of the main reasons for Chrome updates is for to update the Flash.

There are downsides to doing this with Firefox as in things like greater liability, increased security risks, increased Firefox updates, the plugins is not open source and would greatly increase the size of the Firefox download.

Adobe has apologized for the several problems they have caused with their Flash 11.3 plugin as can be seen at http://forums.adobe.com/message/4498459

As Ed said, Mozilla has nothing to do with making the Flash browser plugin as you claimed in your third reply. The Flash browser plugin made by Adobe is used by a variety of web browsers besides Firefox except for IE on Windows as it uses a ActiveX version.

Try this: < It's a possible RealPlayer Plugin issue> Follow these steps if you get this message on Youtube "an error has occured-please try again later": 1) Disable all RealPlayer Plugins or Extensions on FireFox then close Firefox. 2) Launch RealPlayer and click on the RealPlayer icon at the top left. 3) Click Preferences 4) In the Category panel click Download and Recording. 5) Uncheck (remove check mark) from Web Download and Recording and click OK. 6) Start Firefox and try to play the Youtube videos. NOTE: By disabling this you will not be able to download the Youtube video to your computer since the download uses the Realplayer Web download. You can use free software (FREE YOUTUBE DOWNLOAD) by DVDVideoSoft Free Studio at "www.dvdvideosoft.com" to download a Youtube video to your computer if desired. The video will be downloaded into your Video Libraries folder.

This worked for me. I hope it works for you !

To resolve this I first saved my bookmarks

1. Uninstalled Firefox
2. Deleted all in the profile folder
3. Deleted the install folder
4. Reinstalled Firefox